How do whorl fingerprints appear?

Whorl fingerprints are a distinctive type of fingerprint pattern characterized by the circular or spiral arrangement of ridges. They have a clear formation where the ridges create a complete circle or swirl in the center of the fingerprint. This circular structure can be observed in the overall pattern and distinguishes whorls from other fingerprint types, such as loops, which have ridges that enter and exit on the same side, or arches, which do not have any significant core structures. The hallmark of whorl patterns is this central circular formation, which is why it is identified as the correct description of how whorl fingerprints appear.